Technical Product Specification

System Power Sub-system Intel® Server System P4000IP and Intel® Workstation System P4000CR Family TPS
Revision 1.2 Intel order number G38159-002
41
Table 32. AC Line Sag Transient Performance
AC Line Sag (10sec interval between each sagging)
Duration
Sag
Operating AC Voltage
Line Frequency
Performance Criteria
0 to 1/2 AC
cycle
95%
Nominal AC Voltage ranges
50/60Hz
No loss of function or performance.
> 1 AC cycle
>30
%
Nominal AC Voltage ranges
50/60Hz
Loss of function acceptable, self-
recoverable.
Table 33. AC Line Surge Transient Performance
AC Line Surge
Duration
Surge
Operating AC Voltage
Line
Frequency
Performance Criteria
Continuous
10%
Nominal AC Voltages
50/60Hz
No loss of function or performance
0 to ½ AC
cycle
30%
Mid-point of nominal AC
Voltages
50/60Hz
No loss of function or performance.
2.2.2.8 Power Recovery
The power supply shall recover automatically after an AC power failure. AC power failure is
defined to be any loss of AC power that exceeds the dropout criteria.
2.2.3 Efficiency
The following table provides the required minimum efficiency level at various loading conditions.
These are provided at three different load levels; 100%, 50%, 20%, and 10%. Output shall be
load according to the proportional loading method defined by 80 Plus in Generalized Internal
Power Supply Efficiency Testing Protocol, Rev 6.4.3. This is posted at
http://efficientpowersupplies.epri.com/methods.asp
Table 34. Platinum Efficiency Requirement
Loading
100% of maximum
50% of maximum
20% of maximum
10% of maximum
Minimum Efficiency
91%
94%
90%
82%
The power supply must pass with enough margins to make sure in production all power
supplies meet these efficiency requirements.
2.2.4 DC Output Specification
2.2.4.1 Output Power/Currents
The following table defines the minimum power and current ratings. The power supply must
meet both static and dynamic voltage regulation requirements for all conditions.